Needle-loom.



No. 669.523. Patented Mar. I2, MM.

0. HALLENSLEBEN. NEEDLE LOOM.

(Application fll'gd Jan. 24, 1900.)

',(No Model.) 3 8haeta8ho|at l.

m: Noam! Finns co wo'rmlwa, WASHINGTON. n. c.

No. 669,523. Patented Mar. I2, 1901.

0. HALLENSLE'BEN.

NEEDLE LOOM.

(Application filed Jan. 24, 1900.) (No Model.)

3 Shoots-Sheet 2.

OTTO HALLENSLEBEN, OF HILDEN, GERMANY.

NEEDLE-LOOM.

SPECIFICATION formingpart of Letters Patent No. 669,523, dated March 12,1901. Application filed January 24, 1900. serial No. 2,692. (No model.)

To aZZ whom it mayconcern:

Be it known that I, OTTO HALLENSLEBEN, a subject of the King of Prussia,German Emperor, and a resident of Hilden, in the Province of the Rhine,German Empire, have invented certain new and useful Improvements inNeedle-Looms, of which the following is an exact specification.

-The present invention relates to improvements in and connected withlooms, more especially to a device for drawing off the weftthreads asthe same are laid into the shed; and it consists of providing a pair oftongs feeding the weft-threads anda pair of tongs drawing off the same,the said tongs being provided wit-h inclined projections so arrangedthat, after the weft is laid in, the jaws of the tongs for drawing offthe weftthreads are opened for the purpose of gripping the threads,while the jaws of the latter are opened in the right moment for thepurpose of liberating the thread cut by a pair of scissors.

My invention is illustrated in the accompanying drawings, in whichFigure 1 illustrates in front View a loom embodying my invention. Fig. 2is atop view of the pair of tongs serving to draw off the weft-threads.Fig. 3 illustrates in top and side view the pair of tongs for drawingthe weft-threads across the loom. Figs. 4 to 7 illustrate differentworking positions of the tongs. Fig. 8 illustrates in side view themechanism for actuating said tongs, and Figs. 9 and 10 are sectionsthrough c d and cf of Fig. 8.

In the drawings, 7" r illustrate two horizontal rods sliding within aguide provided in a lateral prolongation of the lathe and moved into andout of the shed in known manner by the levers s s, connecting-rods u u,lever 12, connecting-rodw, and leverm, actuated by the eccentric 25. Tothe latter movement is im parted by worm-wheels w 10 of which w isarranged upon the crank-shaft 20 which is driven by a suitable motor,and 10 is arranged upon the shaft of the eccentrics. The removal of thehorizontai rods from the shed takes place in the moment when theweftthreads are laid into the same. The front extremities of the rods1-1" are provided with gripping-tongs the jaws of which are rotatable.The pair of tongs fixed to the right-hand horizontal rod 1" is opened bymeans of lovers 19, adapted to rotate upon a pivot 12*. The levers areinfluenced by a cam o, pinned to the shaftp so that at certain intervalsthe levers p, provided with rollers 10", close on their upper parts,pressing upon the tongs b, and open again, owing to the tensionexercised by a helical spring fixed to the levers p (not shown in thedrawings) after the pressure of the cam has ceased. Upon the shaft p arope or chain disk p is p1nned,which is geared to the crank-shaft 20 bymeans of ropes or chains h and g, rope or chain disks 10 19 arrangedupon the rod 12 and a rope or chain disk p,pinned to the crank-shaft 20A double-armed lever m n, arranged above the horizontal rod-"r, isinfluenced by a cam Z in such a manner that the arm m is lowered whenthe tongs b are opened by the levers 19, so that the Weft-thread h,wound upon a spool c and guided through eyesf e and a narrow tube 01,attached to the arm m, can be inserted between the tongs b. The movementof the horizontal rod r causes the pair of tongs b to grip the threadand to advance up to the middle of the fabric. At the same time thehorizontal rod 1, together with its pair of tongs a, is moved into theshed from the opposite side, takes the weft-thread off from the pair oftongs b, and in the withdrawalof the rods 1" and 1'' draws the weftcompletely across the shed.

In order to facilitate the gripping and the freeing of the weft-threadsby the tongs a and I), both tongs are provided with wedgeshapedprojections, as illustrated in Fig. 3.

Fig. 4 shows the manner in which this gripping-finger of the pair oftongs 1) opens the pair of tongs a, whereupon during the further slidingmovement the same closes again, Fig. 5, and above the pair of tongsbtakes the weft-thread. As the tongs are removed from each other thegripping-fingers of the tongs a open the mouth of the tongs b, Fig. 6,the latter liberating the weft-thread, which now can be drawn across theshed by the tongs a.

The extremity of the weft-thread is cut at the right moment by means ofa pair of scissors y, which are operated by means of acam ,2, arrangedupon a shaft 7t, geared to the shaft 19 by bevel-wheels,while the tongsa are caused to liberate the extremity of the weftthread when leavingthe shed by two stops y, fixed upon the lathe in the manner illustratedin Fig. 2.

The apparatus for actuating the pair of tongs is illustrated in Figs. 8to 10 of the accompanying drawings. At each side of the lathe I provideguide-pieces a b for replacing the shuttles generally employed. Theseguide-pieces 0/. b are provided with a recess receiving theconnecting-piece r This connecting-piece r is altered in position by thelevers, to which movement is imparted from a mechanism forming a part ofthe loom, as shown in Fig. A recess is cut into the piece r ,in whichrecess a rack E is adapted to move. A roller F lends support to the rackand at the same time forms the bearing for the pair of tongs a. Theleft-hand extremity of the piece 1" carries a frame A, inclosing atoothed wheel J and a chain-wheel J. The toothed Wheel J engages into arack G, fixed to the frame of the loom, while the chain-wheel isconnected with the second chain-wheel H, which also is inclosed by aframe fixed to the connecting-rod 1' by means of a chain running overboth wheels. The chain-wheel H is rigidly connected with a toothed wheelJ ceases engaging into the rack E. If now by means of the lever s theconnecting-piece r is displaced, the toothed wheel J engages into thelower rack and is thereby rotated, and owing to the chain also impartsrotation to the toothed wheel H, which engages into the rack E, removingthe same from the guide 0" so that the Whole apparatus is extended inthe manner of a telescope.

Having thus fully described the nature of this invention, what I desireto secure by Letters Patent of the United States is In a device fordrawing off the weft-threads, the combination of a pair of tongs bfeeding the weft-threads, a pair of tongs a drawing 01f the threads,both tongs being provided with wedgeshaped gripping-fingers, and meansfor operating the pairs of tongs, so that the tongs meet in the middleof the shed and there transfer the thread from one pair of tongs to theother, as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

OTTO HALLENSLEBEN.

Witnesses:

WILLIAM ESSENWEIN, EMIL HOETTE.

